Enhanced photoinduced birefringence in polymer-dye complexes: Hydrogen bonding makes a difference

Arri Priimagi, Matti Kaivola, Francisco J. Rodriguez, Martti Kauranen

Research output: Contribution to journalArticleScientificpeer-review

64 Citations (Scopus)
4 Downloads (Pure)

Abstract

The authors demonstrate that photoinduced birefringence in azo-dye-doped polymers is strongly enhanced by hydrogen bonding between the guest molecules and the polymer host. The primary mechanism behind the enhancement is the possibility to use high dye doping levels compared to conventional guest-host systems because dye aggregation is restrained by hydrogen bonding. Moreover, hydrogen bonding reduces the mobility of the guest molecules in the polymer host leading to a larger fraction of the induced birefringence to be preserved after the excitation light has been turned off.
Original languageEnglish
Article number121103
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume90
Issue number12
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

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